Stop-cock.



NO- 877,875. PATENTED JAN. 28, 1908. J. VAN NOSTRAN. STOP 000K.

APPLICATION FILED MAR. 13. 1907 UNrTE STATES PATENT OFFICE."

JOSEPH Evin NOSTRAN, or canrom-onmassrenon or ONE -BLALF To GEORGE w. SHADE,

' j 0F CANTON, onro.

sror-oocx.

To all whom 'itma/y concern;-

TRAN, avzitizen of the U nitedStates, residingat Canton, in thegounty of Stark and State ofOhio, haveinventednewand useful Improvements' in Stop-Cocks,- of which the folowing is a specification. I

This inventionrelates' to cocks and faucets, and its object is first, to adapt a faucet to open freely under little or no water pressure;

- second, to provide means for preventing leakage at both the fixed and movable, joints third, to provide means forre'ducing to a minimum the wear upon the valve; and fourth, to adapt the turning lever or handle to be readily set at any desired point its circle of revolution, when closed.

- To this end my, invention consists in the construction and combination ofparts forming a stop-cock hereinafter more fully described and particularly set forth in the claims, reference bein had to the accompan drawings inw 'ch Figure 1 represents a longitudinal vertical section of a" stop-cock accordin to my invention Fig. -2 represents a receive acap'Q. y .g

10 representsthe valve -and'11 a packing.-

washer securedto'it'slower end y a screw 12. This screw further serves. to secure the stem 13 to the valve, and to bind between the valve and stem adisk14. This disk is made of elastic material such as soft rubber and isrigidly secured at its outer edge between the cap 9 and, body -3, and its central portion bends up and down to-accom-modate the movement of the valve openin and closing, but itjremains fixed as a tight packing -for the joint between the valve and stem and between the cap and bod 15 re resents a thimble-which is screw-v threade at 16 uplonthe cap 9, and has a conical bearing for t supper end of the stem 13'. A spring 17 acting'between the shoulder 18 f Specification of Letters Patent. I Application filed March 13.1907- Serial N 0. 862.166-' an view of the handle inverted, and Fig. 3 a top view of Patented Jan. 28, 1908.

/ in the ca and the shoulder 19 on the stem Be it known that I, JosEPH E. VAN Nospresses t e stem against the thimblefand,

when the thimble s screwed u wards the valve is opened.- The thimble 1s provided with a screw extension 20 which asses,

through the head of the handle 21, an a nut 22 threaded upon thescrew 20 binds the handle to the thimble. Thethimble and handle are radially corru a'ted in their adjacent facesse that the wrlnkles of the corrugations register together and hold'tlie thimble sea ment is resisted by both the spring 17 and the elastic disk 14, and when the handle is turned to raise the thimbleboth the spring and the disk act in addition to whatever pressure there maybe on the water in the cock to 0 en the valve, at the valve would be opene without the a d of the water pres-.-

sure, I The disk 14 secures absolutely tight joints at all times'around both the valve stem and the cap, whether the stop-cockbe used for air,-steam, water or oth'er fluid. Asthe,

valve and its stem do not rotate with-the thiinble; the packing washer 11 moves directly to and from the valve seat in operation,-

thus avoiding the grinding wear that'takes place invalyes which mustibe rotated'when pressed against their seats, both in clos ng them: tightly and in o ening them Having t us fully escribed my invention,

what I believe to be new and'desire to secure by Letters .Patent is the, following The combination of a stop-cockbody-have ingnavalve-seat in it; a cap u on the body a t mble freely screw-threade upon the cap; a valve fitted to the said seat and provided with a stem which passes through the said ca and has a conical bearing againstthe said thimble; a s ring acting between the cap and the stem to orce the latter to a bearing vided with ascrwthreaded extension and -10) against the thimble; the thimble'being prowith a radially. corrugated shoulder around In testimony whereof I afiix my signature,. tfie. erlzltenlsion; a handilehfreely fittgdlupon in presence'of two subscribing witnesses. -t e t 'm e stem an aving ra ia cory rugations to register with the corrugations JOSEPH VAN A 5 on the thimbie, and a nut screw-threaded Witnesses:

upon the said extension, substantially as J. A. JEFFERS, shown and described. CHLABLES' 

